The ST7 Superflow is equipped with a rear reflector that aids visibility and safety even during the day.
Special Gel inserts give the ST7 Vision Superflow a high level of comfort while the shock absorbers significantly increase comfort.
Size: (L3) 165 x 250 mm Weight: 475 grams Rail: FeC Alloy 7 mm Use: Leisure / Urban
Selle Italia saddles come in three sizes:
And they have three configurations:
No cutout (1)
Small Cutout (Flow / 2)
Large Cutout (Superflow / 3)
So if we decode a Selle Italia SLR Boost S3 - that's a Boost saddle in narrow with a large cutout 9Superflow).
They have a very handy tool on their website that will work out exactly what size you need. It only takes 30 seconds to complete and is well worth the effort to make sure that you buy a saddle that is perfect for your body type. Find the tool by clicking here.